If you delete maps without backing them up, there's nothing you can do, but you can put maps back on by connecting to TomTom Home if they have been saved, otherwise you'll need to download and install new maps here

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When you update the unit you are given selections based upon how much memory is available on your unit. With each map release, the map sizes become larger. On the 2xx series, you may not have had enough memory to have both the US and Canada map, so it probably only installed the lower 48 states. You will need to install the map on an SD card in order to have both maps on the unit.

You need to replace the map with a full map of the US and Canada. Did you register your unit with the Garmin website? Did you create an account? If so, you can log in and see if you can download a larger map. Otherwise you will need to purchase a new map. I can also help you with this issue but it would require for me to have your unit in front of me to do it.

That is really strange!I can only suggest that you verify what MAPs are physically on your TomTom device by connecting it to a PC/LAPTOP and use Windows Explorer to look at your GPS drive folders: should see a folder for each 'country' (like GUAM).The normal way to check which maps are registred and loaded on your device is to use TomTom Home -> Update maps function: it will show you the status or whereabout of any Maps that you have loaded or backup and which one can be purchased.Hope it helps: let me know how you go.ps.i f you wisely backup your device on a regular basis (via TomTom Home or direct copy to your PC/LAPTOP), you could always RESTORE FROM BACKUP and start again.

The reason the 125 is cheaper is because it only has the US map on it. Each map contains an activation file that prevents it from being used on different devices, so its doubtful that the other map will work for you. You can purchase the latest Canada/Alaska map from TomTom's site for $59.95.

Go to http://www.tomtom.com/products/maps/

Select your device as the ONE 130 (since they don't have 125 on the site) and choose the Canada/Alaska map.

connect your unit to your pc when prompted by tom tom press yes. go to manage my one on your home page. on the manage your navigation go to item on device click on maps and check guam box and remove from device. only map left will be usa.

This TomTom comes loaded with 2 maps....Guam and the US with Canada. I too got stuck in Guam and it is not obvious how to get out of it. But here it is.
Go to Main Menu, then Change Preferences
Hit forward arrow twice
Go to Manage Maps
Hit forward arrow once and choose Switch Map
It should show you Guam and the US and Canada
Tap US and Canada and it should take you out of Guam!!
Mine did and I am now going to delete the Guam map.